KR100784639B1 - 강유전체 산화물 인공격자, 그의 제작 방법 및 초고밀도 정보저장 매체 - Google Patents
강유전체 산화물 인공격자, 그의 제작 방법 및 초고밀도 정보저장 매체 Download PDFInfo
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- KR100784639B1 KR100784639B1 KR1020060045081A KR20060045081A KR100784639B1 KR 100784639 B1 KR100784639 B1 KR 100784639B1 KR 1020060045081 A KR1020060045081 A KR 1020060045081A KR 20060045081 A KR20060045081 A KR 20060045081A KR 100784639 B1 KR100784639 B1 KR 100784639B1
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- G—PHYSICS
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- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
- G11B9/02—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using ferroelectric record carriers; Record carriers therefor
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
- G11B9/12—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using near-field interactions; Record carriers therefor
- G11B9/14—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using near-field interactions; Record carriers therefor using microscopic probe means, i.e. recording or reproducing by means directly associated with the tip of a microscopic electrical probe as used in Scanning Tunneling Microscopy [STM] or Atomic Force Microscopy [AFM] for inducing physical or electrical perturbations in a recording medium; Record carriers or media specially adapted for such transducing of information
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Abstract
Description
Claims (13)
- 서로 다른 분극특성을 갖는 적어도 2개 이상의 유전체 물질을 단위격자 단위로 적층하여 구성 물질과는 다른 비등방성을 갖는 단위구조를 형성하고, 상기 단위구조를 반복 적층하여 형성되어, 도메인의 나노크기화 및 장기 안정성을 가지도록 구성되고, 단위구조 내의 각 유전체 물질의 단위격자 크기는 1 단위격자 내지 5 단위격자 범위를 갖고, 상기 단위구조 크기는 적층수직 방향으로 10 단위격자 이내의 범위를 갖으며,상기 유전체 물질은 분극 반전이 수직으로만 이루어지고, 상기 분극 반전이 정보저장 단위인 "0"과 "1"로 되어 정보저장 신호로 사용되는 분극량을 증대시키고 정보저장의 초고밀도화를 이룰 수 있는 강유전체 산화물 인공격자.
- 제 1항에 있어서, 상기 단위구조는 기판에 수직하고 기판 상하 2방향으로만 전기분극을 갖고 이에 따른 전기분극특성을 갖는 것을 특징으로 하는 강유전체 산화물 인공격자.
- 제 2항에 있어서, 상기 전기분극특성을 갖는 단위구조를 통해 이루어져 기판에 수직한 180o 도메인 구조만을 갖는 것을 특징으로 하는 강유전체 산화물 인공격자.
- 제 1항에 있어서, 상기 단위구조 내의 격자에는 2개 이상의 유전체 물질 구성 원자가 규칙적으로 배열된 구조를 가지는 것을 특징으로 하는 강유전체 산화물 인공격자.
- 삭제
- 제 1항에 있어서, 상기 유전체 물질은 PbTiO3, PbZrO3, BaTiO3, BaZrO3, SrTiO3, SrZrO3, KNbO3, KTaO3, CaTiO3, CaZrO3, BaSnO3, BaFeO3 중에서 선택된 어느 하나인 것을 특징으로 하는 강유전체 산화물 인공격자.
- 단결정 기판;상기 기판 위에 형성된 전극; 및상기 전극 위에 형성되는 제 1항 내지 제 4항 및 제 6항 중 어느 한 항에 따른 강유전체 산화물 인공격자를 포함하여,도메인의 나노크기화 및 장기 안정성을 이루는 초고밀도 정보저장 매체.
- 서로 다른 분극특성을 갖는 적어도 2개 이상의 유전체 물질을 단위격자 단위로 적층하여 구성 물질과는 다른 비등방성을 갖는 단위구조를 형성하고, 상기 단위구조를 반복 적층하여, 도메인의 나노크기화 및 장기 안정성을 이루도록 구성된 강유전체 산화물 인공격자를 제조하는 방법.
- 제 8항에 있어서, 상기 단위구조는 기판에 수직하고 기판 상하 2방향으로만 전기분극을 갖고 이에 따른 전기분극특성을 갖도록 형성되는 것을 특징으로 하는 강유전체 산화물 인공격자 제조 방법.
- 제 9항에 있어서, 상기 전기분극특성을 갖는 단위구조로 이루어지며 기판에 수직한 180o 도메인 구조만을 갖는 것을 특징으로 하는 강유전체 산화물 인공격자 제조 방법.
- 제 8항에 있어서, 상기 단위구조 내의 격자에는 2개 이상의 유전체 물질 구성 원자가 규칙적으로 배열되도록 하는 것을 특징으로 하는 강유전체 산화물 인공격자 제조 방법.
- 제 8항에 있어서, 상기 단위구조 내의 각 유전체 물질의 단위격자 크기는 1 단위격자 내지 5 단위격자 범위를 갖고, 상기 단위구조 크기는 적층수직 방향으로 10 단위격자 이내의 범위를 갖는 것을 특징으로 하는 강유전체 산화물 인공격자 제조 방법.
- 제 8항에 있어서, 상기 유전체 물질은 PbTiO3, PbZrO3, BaTiO3, BaZrO3, SrTiO3, SrZrO3, KNbO3, KTaO3, CaTiO3, CaZrO3, BaSnO3, BaFeO3 중에서 선택된 어느 하나인 것을 특징으로 하는 강유전체 산화물 인공격자 제조 방법.
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US11/420,544 US7741633B2 (en) | 2005-12-31 | 2006-05-26 | Ferroelectric oxide artificial lattice, method for fabricating the same and ferroelectric storage medium for ultrahigh density data storage device |
DE102006050316.3A DE102006050316B4 (de) | 2005-12-31 | 2006-10-25 | Verfahren für das herstellen eines ferroelektrischen künstlichen oxidgitters sowie ein ferroelektrisches künstliches oxidgitter erhältlich nach diesem verfahren und ferroelektrisches speichermedium umfassend das ferroelektrische künstliche oxidgitter |
JP2006318699A JP5204969B2 (ja) | 2005-12-31 | 2006-11-27 | 強誘電体酸化物人工格子および強誘電体酸化物人工格子の製造方法 |
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KR20180109309A (ko) * | 2017-03-27 | 2018-10-08 | 울산과학기술원 | 초격자 구조를 가지는 유전체 소재, 전자 소자 및 전자 소자의 제조 방법 |
KR102211410B1 (ko) * | 2018-03-30 | 2021-02-03 | 세종대학교산학협력단 | 자가-정류 강유전체 터널 접합 메모리 소자 및 이를 구비하는 크로스포인트 어레이 |
CN119446369B (zh) * | 2025-01-08 | 2025-04-04 | 四川大学 | 一种材料晶界的分子动力学模拟方法及介质 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US6204525B1 (en) * | 1997-09-22 | 2001-03-20 | Murata Manufacturing Co., Ltd. | Ferroelectric thin film device and method of producing the same |
KR20030070295A (ko) * | 2002-02-23 | 2003-08-30 | 학교법인 성균관대학 | 다층산화물 인공격자를 갖는 소자 및 이의 제조방법 |
KR20040077327A (ko) * | 2003-02-28 | 2004-09-04 | (주)아이블포토닉스 | 강유전체 단결정을 이용한 단결정성 막 제조 |
KR20050106391A (ko) * | 2005-03-17 | 2005-11-09 | 후지쯔 가부시끼가이샤 | (001) 배향된 페로브스카이트막의 형성 방법, 및 이러한페로브스카이트막을 갖는 장치 |
KR20060005047A (ko) * | 2004-07-12 | 2006-01-17 | 전자부품연구원 | 초전도 전극을 이용한 나노스토리지 강유전체 매체구조 및그 제조방법 |
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6204525B1 (en) * | 1997-09-22 | 2001-03-20 | Murata Manufacturing Co., Ltd. | Ferroelectric thin film device and method of producing the same |
KR20030070295A (ko) * | 2002-02-23 | 2003-08-30 | 학교법인 성균관대학 | 다층산화물 인공격자를 갖는 소자 및 이의 제조방법 |
KR20040077327A (ko) * | 2003-02-28 | 2004-09-04 | (주)아이블포토닉스 | 강유전체 단결정을 이용한 단결정성 막 제조 |
KR20060005047A (ko) * | 2004-07-12 | 2006-01-17 | 전자부품연구원 | 초전도 전극을 이용한 나노스토리지 강유전체 매체구조 및그 제조방법 |
KR20050106391A (ko) * | 2005-03-17 | 2005-11-09 | 후지쯔 가부시끼가이샤 | (001) 배향된 페로브스카이트막의 형성 방법, 및 이러한페로브스카이트막을 갖는 장치 |
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